How Does a Refrigerator Work?

The refrigeration cycle is a normal process consist of, Compression, Condensation, Expansion,Evaporation .The process are given below:

Refrigeration Cycle

The compressor constricts the refrigerant vapor, raising its pressure, and pushes it into the coils on the outside of the refrigerator.
When the hot gas in the coils meets the cooler air temperature of the kitchen , it becomes a liquid.
Now in liquid form at high pressure, the refrigerant cools as it flows into the coils inside the freezer and the fridge.
The refrigerant absorbs the heat inside the fridge, cooling down the air.
Last, the refrigerant evaporates to a gas, then flows back to the compressor, where the cycle starts all over.

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Combined-Cycle Power Plant

Combine Power Plant use both Gas Turbine and Steam Turbine to produce energy. Natural gas use for gas turbine.The exhaust heat of gas turbine use in steam turbine. A schematic diagram are given below: Combined Cycle Generation Process

What is automobile engineering?

Automotive engineering , along with aerospace engineering and marine engineering , is a branch of vehicle engineering , incorporating elements of mechanical , electrical , electronic , software and safety engineering as applied to the design, manufacture and operation of motorcycles , automobiles and trucks and their respective engineering subsystems. It also includes modification of vehicles. Manufacturing domain deals with the creation and assembling the whole parts of automobiles is also included in it.The automotive engineering field is research -intensive and involves direct application of mathematical models and formulas. The study of automotive engineering is to design, develop, fabricate, and testing vehicles or vehicle components from the concept stage to production stage. Production, development, and manufacturing are the three major functions in this field. (Source Wikipedia)

What is Composite Material?

A Composite Material is a material made from two or more constituent materials with significantly different physical or chemical properties that, when combined, produce a material with characteristics different from the individual components. Composite Material was introduced long time ago. But was in different form. Bricks were made by using clay and straw. It was ancient use of composite material. But now-a-days composite materials example: carbon, glass, epoxy etc.

Mechanical Engineering

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